Back-stop attachment for straw-stackers



W. W. CARSON, DECD. L. P. C'ARSON, ADMINISTRATRIX.

BACK STOP ATTACHMENT FOR STRAW STACKERS.

APPLICATIQN FILED AUG-30. 191s. RENEWED mm. 17. 1921.

W a u H 0 d 6H 6 2H W bu C n 4 P w W. W. CARSON, DECD.

L. P. CARSON, ADMINISTRATRIX. BACK STO-P ATTACHMENT FOR STRAWSTACKERS} APPLICATION FILED. A.UG.30.,1918- RENEWED MARrH, 1921. 1,376,251

m w m. M 6% W 24 3 Ln a m A w a W. W. CARSON, DEC'D.

L- P. CARSON, ADMINISTRATRIX.

BACK STOP ATTACHMENT FOR STRAW STACKERS.

APPLICATION FILED AUG-30, 191s. RENEWED MAR. 17, 192].

1,376,251 Patented Apr. 26, 1921.

3 SHEETS-SHEET 3.

WALTER W. CARSON, 0F TIPTON, INDIANA; LIVINA PEARL CARSON,

OFFICE.

or TIPTON,

INDIANA, ADMINISTRATRIX OF SAID WALTER W. CARSON, DECEASED.

BACK-STOP ATTACHMENT non STRAW-STACKERS.

Application filed August 30, 1918, Serial No. 252,038.

T 0 all whom it may concern:

Be it known that I, WALTER W. CARSON, a citizen of the United States, residing at Tipton, in the county of Tipton and State of Indiana, have invented new and useful Improvements in Back-Stop Attachments for S traw-Stackers, of which the following is a specification.

The object of the invention is to provide means which may be readily carried by a straw stacker of the ordinary construction, which will control the delivery or stacking of straw as it leaves the spout or blower pipe so that a stack of comparatively uniform shape may be produced thereby, and properly topped out so as to be protected against the weather, to distinguish it from those stacks formed in the ordinary way and in which, while the side next to the stacker is comparatively abrupt and therefore will serve to turn the rain and other moisture, the side remote from the stacker is more or less straggling and spread-out, so that the straw is not properly protected. It is therefore fundamentally the object of the invention to provide means for restraining the straw as it is delivered from the spout, to confine the. deposit thereof within certain limits and thus build a stack which is of relatively uniform shape throughout, with out particular regard to its size, so that when topped out the main portion of the material contained in and forming the stack will be protected and thus preserved against rust, rotting and the like. i

A. further object of the invention is to provide an apparatus of the type and for the purpose indicated which can be readily folded and stored upon a stacker of the ordinary construction, so that the same ma be readily transported with the stacker rom place to "place without inconvenience to the operator. V 1 y r Further objects and advantages will appear'in the following description of a preferred'embodiment of the invention, it being understood that changes in form, proportion and details may be resorted to, within the scope of the appended claims, without departing from the spirit of the invention. I

In the drawing I Figure 1 is a side view of a back stop or Specification of Letters Patent.

Renewed March 17, 1921. Serial No. 453,067. restraining attachment arranged in the operative position as applied to a stacker, the latter being shown merely in outline.

F g. 2 1s a plan view of the same.

Flg. 3 1S aside view showing the back stop or restraining apparatus in folded posltion relative to the stacker as when being transported.

Flg. 4 is a detail View of the backstop screen and means whereby the same 1s mounted upon and connected with the auxiliary boom or extensible element of the supporting mechanism.

Flg. 5 is the vertical sectional View of the plane indicated by the line 55 of Fig. 1, showing the portions of the apparatus on the rear end of the stacker in elevation.

Figs. 6 and 7 are fragmentary views of details hereinafter explicitly referred to.

Theapparatus embodying the invention is shown in connection with a thresher 1O of the ordinary type having a stacker spout 11 which .is composed. of telescoping sectlons 11, 11 to provide for extension, with a flexible or angula-rly adjustable neck or elbow 12, aterminal hood or deflector 13, and a supporting bracket 14 which is piv- Patented Apr. 26, 1921. r w

otally mounted upon the frame of the threshing machine to permit of angular swinging movement in a horizontal plane so as to distribute the dlscharge of straw from the outlet of the spout.

Also carried by the frame or body of the threshing machineis a mast or post 16 adapted when in its operative position, to stand'upright where it is held by the guy rope-17 and when folded to occupy a' substantially horizontal position approximately parallel with the stacker spout which is foldable in the ordinary way by swinging it laterally around its pivotal point of mounting to extend forwardly along and above the frame of the threshing machine. mast or post is provided with a carrying shaft 18 mounted in bearings 19 supported by the frame of the threshing machine, and connected with said shaft is a crank arm 20 freely operating. in a vertical guide 21 and havingconnected therewith an operating cable 22 reeled upon a drum 23, Fig. 6, to which is attached an operating crank.24. By means of this operating crank the mast or post may be raised or lowered, the up- I latter.

\ relative position.

ward movement thereof being limited, as will be understood, by the length of the guy rope 17, and to prevent accidental unwinding of the elevating ropeor cable, a pawl and ratchet. locking means 25 may be employed.

(Jarried by the mast ,or post is aiscreen supporting element or boom 26, the connection between said boom and mast beingsuch as to provide for swinging movement of the former around the latter and also "pivotal swinging movement in the plane of the To this end a bracket'27 is mounted upon themast orpost'to-turn thereupon as an'axis, while theend o t the mainboom is pivotally connected as'at 27 with said bracket to provideffor vertical swinging movement as the-height of the stack increases. It is desirable that this main supporting element or boom shall move'approximately with the, straw delivery spout and therefore the latter is "provided with a hanger 28 having a runner consisting of a extension boom or element 30 fitted to slide in a sleeve 31 which is'tiltably or pivotally 40 mounted as at 32,'upon the main beam and is held at the desired angular adjustment with reference to the main boom by an operating cable 33attached to'the end of said sleeve, passing around adirection pulley 34 and extending to a drum or windlass 35 having .a pawl and ratchet locking means 36. By letting out or taking up this cable the angular adjustmentof the tilting sleeve and hence of the extensible or auxiliary boom may be varied. Also the extensible boomis adjustable longitudinally in the sleeve by means of the cooperating cables 37 and 38, the former of which is attached to theouter end of the extension element and the latter to the innerend thereof, passing around 'the'direction' pulley 39, and both cablesbeing properly secured at the other end to a double drum or Windlass 40 which may as shown be mounted upon the main boom. Obviously by turning the Windlass 40 in one direction the auxiliary boom will be extended whereas by turning said windlass in the opposite direction the said element will be drawn back and in this way it may be positioned as desired to locate the screen or back stop at the desired distance from the discharge end or" the straw spout.

The outlet of the spout and the screen may be located close to the ground when the buildin of a stack is commenced, and should be elevated gradually as the stack is formed, and in order to provide for this adjustment, a cable 41 is connected with the main boom at the outer or free end and after passing over a direction pulley l-2 at the top of the mast or post is reeled upon a windlass 413 having a pawl and ratchet stop mechanism 44:. After the properangular adjustment ofthe boom to position-the outlet of the spout, and screen at the desired elevation, the pawl and ratchet lock- I ing mechanism maintain said positions dur ing the lateral swinging or distributing movement of the spout accompaniedas above indicated by the screen which remains always in front of the outlet of the spout and in a position -to prevent the scattering of the straw as it leaves the same. By gradually raising step by step the outlet end of the spout and the screen asthe stack grows, a comparatively abrupt outer side may be provided for the stack, and finally the latter 'may be topped off, as desired 'to form a water shed to protect the straw within the body portion of the stack.

Also in order that the screen or back stop proper maybe folded compactly with reference to the other parts of the apparatus, the stem 45 thereof is pivotally mounted as at 46 upon the extremity of the auxiliary boom and a brace 47 is connected with the projecting upper portionof-said stem and is detachably anchored as by a pin &8 to the boom when the parts are arranged for operation. When the apparatus is to be folded said pin may be withdrawn and the screen folded into a plane substantially arallel with the main and auxiliary booms. t is the common practice to fold the delivery spout by swinging it around toward the front over the frame of the threshing 1 machine, and by reason of the mountings abovedescribed the main boom and the 7 features carried thereby including the auxiliary boom and screen maybe correspondintermediate position in Fig. S -until they occupy a position above the bodyjportion of the thresher when the boom elements may be seated in a holding bracket 49,Fig.

'ingly swung laterally as indicated in an i 7, provided for their reception near the 7 front of the machine'andthe mast or post may then be lowered as indicated in Fig. 3 by a'ireverse movement of the Windlass 23. Toextend'the apparatus for use, obviou'sly, the reverse of the above operation should be conducted, namely the mast or post should first be swung to its upright position byvthe manipulation of the windlas 23, until checked by the guy rope 17, whereupon by operating the Windlass 43 suificiently to raise the spout and main boom with its attachments and clear the bracket 49, the same may be swung laterally to project rearwardly from the threshing machine. The spout and main boom may then be lowered so as to properly position the screen and the outlet of the spout and discharged the spout as usual is swung in the arc of a circle from side to side, the outlet thereof with the screen being raised from time to time as the stack increases in height. The position of the screen with reference to the outlet of the spout will determine the shape of the side of the stack remote from the threshing machine, so that the same may be built up substantially perpendicularly from the ground.

Also the diameter of the stack may be determined by the adjustment of the extensible element of th sions vertically as well as laterally.

avlng described the invention I claim: 1. i back stop attachment for a stacker,

pivotally mounted mast or post, connected thereto, a mast, mounted on a termediate point of its longitudinal adjustment ary or extensible boom mounted for adjustment relative to the main boom, and having said screen connected to the extremity thereof, and means for retaining said parts in their operative relations with the staker spout.

2. A back stop or straw restraining at tachment for stackers, having a barrier screen for arrangement in the path of discharge from the stacker spout, a foldable mast or post and means for securing the same in its upright or operative position, a main boom mounted for vertical and lateral swinging movement relative to said mast or post, a sleeve tiltably mounted at an inlength upon the outer end of the main boom, an auxiliary extension relative to the main boom and having said screen connected with the forward end thereof, and means for relatively adjusting and securing said elements to maintain the screen in operative relation with the stacker spout.

3. A back stop attachment for a straw stacker, having a mast or post provided with a carrier shaft and means connected therewith for securing the mast in upright position, a main boom mounted upon the mast for vertical and lateral swinging movement, a sleeve pivotally mounted at an intermediate point of its length for tiltin movement upon the outer end of the main boom, an auxiliary boom mounted for in said sleeve, a arrier screen adapted for arrangement in the path of discharge from the stacker spout and foldably mounted upon the extremity of said auxiliary boom, means for securing said screen in, its operative position with reference to the auxiliary boom, and means for adjusting the angular and longitudinal position of the auxiliary boom with relation to the main boom.

In testimony whereof I aflix my signature.

WALTER W. CARSON. 

